Is the difference really that stark? Maybe my hardware is powerful enough not to be bothered, but any slowness to me is imperceptible with Firefox. (This isn’t to be dismissive of the issue, of course they should try to improve performance wherever possible.)

I don’t understand why people are loving this new look. In my opinion it looks ugly amd to childish. I want back the ild look. Simole and without custom CSS being broken.

Why were you downvoted? Come on, people, if you’ve got something to say, say it!